Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 1 | #include "VectorType.h" |
| 2 | |
| 3 | #include "Formatter.h" |
| 4 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame^] | 5 | #include <android-base/logging.h> |
| 6 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 7 | namespace android { |
| 8 | |
| 9 | VectorType::VectorType(Type *elementType) |
| 10 | : mElementType(elementType) { |
| 11 | } |
| 12 | |
| 13 | void VectorType::dump(Formatter &out) const { |
| 14 | out<< "vec<"; |
| 15 | mElementType->dump(out); |
| 16 | out << ">"; |
| 17 | } |
| 18 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame^] | 19 | std::string VectorType::getCppType(StorageMode mode, std::string *extra) const { |
| 20 | const std::string base = |
| 21 | "::android::hidl::hidl_vec<" |
| 22 | + mElementType->getCppType(extra) |
| 23 | + ">"; |
| 24 | |
| 25 | CHECK(extra->empty()); |
| 26 | |
| 27 | switch (mode) { |
| 28 | case StorageMode_Stack: |
| 29 | return base; |
| 30 | |
| 31 | case StorageMode_Argument: |
| 32 | return "const " + base + "&"; |
| 33 | |
| 34 | case StorageMode_Result: |
| 35 | return "const " + base + "*"; |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | void VectorType::emitReaderWriter( |
| 40 | Formatter &out, |
| 41 | const std::string &name, |
| 42 | const std::string &parcelObj, |
| 43 | bool parcelObjIsPointer, |
| 44 | bool isReader, |
| 45 | ErrorMode mode) const { |
| 46 | std::string baseExtra; |
| 47 | std::string baseType = mElementType->getCppType(&baseExtra); |
| 48 | |
| 49 | const std::string parentName = "_aidl_" + name + "_parent"; |
| 50 | |
| 51 | out << "size_t " << parentName << ";\n\n"; |
| 52 | |
| 53 | const std::string parcelObjDeref = |
| 54 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 55 | |
| 56 | if (isReader) { |
| 57 | out << name |
| 58 | << " = (const ::android::hidl::hidl_vec<" |
| 59 | << baseType |
| 60 | << "> *)" |
| 61 | << parcelObjDeref |
| 62 | << "readBuffer(&" |
| 63 | << parentName |
| 64 | << ");\n\n"; |
| 65 | |
| 66 | out << "if (" << name << " == nullptr) {\n"; |
| 67 | |
| 68 | out.indent(); |
| 69 | |
| 70 | out << "_aidl_err = ::android::UNKNOWN_ERROR;\n"; |
| 71 | handleError2(out, mode); |
| 72 | |
| 73 | out.unindent(); |
| 74 | out << "}\n\n"; |
| 75 | } else { |
| 76 | out << "_aidl_err = " |
| 77 | << parcelObjDeref |
| 78 | << "writeBuffer(&" |
| 79 | << name |
| 80 | << ", sizeof(" |
| 81 | << name |
| 82 | << "), &" |
| 83 | << parentName |
| 84 | << ");\n"; |
| 85 | |
| 86 | handleError(out, mode); |
| 87 | } |
| 88 | |
| 89 | emitReaderWriterEmbedded( |
| 90 | out, |
| 91 | name, |
| 92 | isReader /* nameIsPointer */, |
| 93 | parcelObj, |
| 94 | parcelObjIsPointer, |
| 95 | isReader, |
| 96 | mode, |
| 97 | parentName, |
| 98 | "0 /* parentOffset */"); |
| 99 | } |
| 100 | |
| 101 | void VectorType::emitReaderWriterEmbedded( |
| 102 | Formatter &out, |
| 103 | const std::string &name, |
| 104 | bool nameIsPointer, |
| 105 | const std::string &parcelObj, |
| 106 | bool parcelObjIsPointer, |
| 107 | bool isReader, |
| 108 | ErrorMode mode, |
| 109 | const std::string &parentName, |
| 110 | const std::string &offsetText) const { |
| 111 | std::string baseExtra; |
| 112 | std::string baseType = Type::getCppType(&baseExtra); |
| 113 | |
| 114 | const std::string childName = "_aidl_" + name + "_child"; |
| 115 | out << "size_t " << childName << ";\n\n"; |
| 116 | |
| 117 | emitReaderWriterEmbeddedForTypeName( |
| 118 | out, |
| 119 | name, |
| 120 | nameIsPointer, |
| 121 | parcelObj, |
| 122 | parcelObjIsPointer, |
| 123 | isReader, |
| 124 | mode, |
| 125 | parentName, |
| 126 | offsetText, |
| 127 | baseType, |
| 128 | childName); |
| 129 | |
| 130 | if (!mElementType->needsEmbeddedReadWrite()) { |
| 131 | return; |
| 132 | } |
| 133 | |
| 134 | const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| 135 | |
| 136 | baseType = mElementType->getCppType(&baseExtra); |
| 137 | |
| 138 | out << "for (size_t _aidl_index = 0; _aidl_index < " |
| 139 | << nameDeref |
| 140 | << "count; ++_aidl_index) {\n"; |
| 141 | |
| 142 | out.indent(); |
| 143 | |
| 144 | mElementType->emitReaderWriterEmbedded( |
| 145 | out, |
| 146 | nameDeref + "buffer[_aidl_index]", |
| 147 | false /* nameIsPointer */, |
| 148 | parcelObj, |
| 149 | parcelObjIsPointer, |
| 150 | isReader, |
| 151 | mode, |
| 152 | childName, |
| 153 | "_aidl_index * sizeof(" + baseType + ")"); |
| 154 | |
| 155 | out.unindent(); |
| 156 | |
| 157 | out << "}\n\n"; |
| 158 | } |
| 159 | |
| 160 | bool VectorType::needsEmbeddedReadWrite() const { |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | bool VectorType::resultNeedsDeref() const { |
| 165 | return true; |
| 166 | } |
| 167 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 168 | } // namespace android |
| 169 | |